Printing-cylinder.



G. F. READ.

PRINTING CYLINDER.

APPLICATION FILED FEB. 2. 1910.

Patented Apr. 18, 1916.

"UNITED STATES PATENT onn on.

enonen FRANCIS READ, or LONDON, ENGLAND; ASSIGNOR TO B. HOE AND 00., orNEW YORK, N. Y., A CORPORATION on NEW YORK.

PRINTING-CYLINDER.

Specification of Letters Patent.

Patented Apr. 18, 1916.

Application filed February 2, 1910. Serial No. 541,448.

- ings, forming a part of the same. r

This invention relates to certainimprovements in printing cylinders. i

The object of the invention is to provide a rapid, convenient andefficient means for varying the position of the cylinders in a:

printing machine by adjusting devices which may be simultaneouslyoperated and are so positioned that the adjustments may be effectedwhile the machine is running.

Referring to the accompanying drawingsFigure 1 illustrates in end viewone of the cylinders of a printing machine hav ing adjusting devicesconstructed in accordance with the invention applied thereto. Fig. 2 isa section on the line 22 of Fig. 1. Fig. 3 is a plan view ofthe'construction shown in Fig. 1. Fig. 4 is a section on the line 4-4 ofFig. 1.

In the drawings, 1 represents one of the cylinders of a printingmachine, the shaft 2 on which the cylinder is mounted being supported ina bushing 3 mounted in bearing blocks 4, these bearing blocks fitting inrecesses 5 in the frame of the machine, as is usual in suchconstructions.

Constructions embodying the invention will include devices for adjustingthe position of the bearing blocks in order to vary the position of thecylinder. As shown, the lower part of the bearing box rests on theenlarged head 6 of an adjusting screw 7, the screw being tapped into anopening 8 in the bottom of the recess 5.

In the particular construction shown, a second adjusting screw 9 havinga bearing head 10 is tapped through an opening 11 in a block 12, thisblock being secured to the frame in any suitable manner, as by screws13, 14, this block serving as a cap or cover for the recess in theframe.

In the best constructions embodying the invention, one of the adjustingdevices, in the construction shown, the screw 9,- will bear against awear plate or block 15 removably secured in one of the bearing blocks 4in any suitable manner, as by screws 16.

, Constructions embodying the invention will include means forsimultaneously actuating the adjusting devices. l/Vhile these means maybe varied, in the construction illustrated there is provided an actuatorshaft 17, this shaft passing through an opening in the bearing blocksand also through an opening in theboss 18 formed in one piece with thecover block 12. This shaft, in the construction shown, carries smallgears 19, 20, the gear 19 meshing with a gear 21 on the screw 9 and thegear 20 meshing with a gear 22 on the screw 7 It will be observed thatthis shaft is partly contained within the recess in which the bearing islocated, thus making the construction exceedingly compact. This actuatorshaft may be operated in various ways. In the construction shown, it isprovided with a perforated head 23 in which a pin or tommy may beinserted to turn the shaft. It is obvious that as the shaft is ro--tated the cylinder bearing, shaft and cylinder will be adjusted, and itis also obvious that the actuator shaft is located in such a manner asto be readily accessible notwithstanding the gearing (not shown) whichis ordinarily employed for driving the cylinders. It is further clearthat any adjustments necessary may be effected while the cylinder is inoperation. It will be understood, of course, that similar adjustingdevices are provided on each end of the cylinder, but as they areduplicates only one is shown.

Changes and variations may be made in the construction by which theinvention is carried into effect. The invention is not, therefore, to beconfined to the particular construction herein shown and described.

What is claimed is 1. In a printing machine, the combination with aframe having recesses for the cylinder bearings, of bearings in saidrecesses, an impression adjusting means for each bearing located onopposite sides thereof, said means including an actuator shaft for eachbearing, said shaft being partly contained within the recess in whichthe bearing it adjusts is contained.

2. In a printing machine, the combination with a frame having a recessfor the cylinder bearings, of bearings re-.'

cesses, an actuator shaft-for eachbearing partly contained within therecess for the bearing, and gear operated impression adcesses, upper andlower gear operated ad:

justing screws for the bearings, vertical ac tuator shafts partlycontained within the recesses in which the bearings are mounted, gearson the shafts for operating the ad through which the shafts e.xtend. I

4. In a printing machine, the combina justing screws, and covers forthe'bearings tion, with a cylinder, of a frame having a recess, abearingslidable in said recess arrangedto support thecylinder, a pa r ofvertical HHPIGSSiOII' adjusting screws arranged to act on op osite sidesof the bear ing, an actuator shaft partly contained with- Oopie's' ofthis patent may be obtained 61" five cents each, by addressing theWashington, D. G."

in" the recess within which the bearing is mounted, andgearing betweenthe said actuator shaft and each adjusting screw.

' n aP' 'int smwhi e, th combinei n- ;wiaawa r-m a frame having arecess, a b'earing slidable in said recess and arrangedto support thecylinder, a cover for the bearing, a pair of vertical impressionadjusting screws arranged toiact on opposite sides ofthe bearing, anactuator shaft partly'f contained within the recess within which thebearing is mounted, and

extending through said bearing-cover, and gears connectlng the actuatorshaft to each ad us t1ng screw.

In testimony whereof, I have hereunto set my hand, in the presence'oftwo subscribing witnesses. I v V -GEORGE FRANCIS READ,

.Witnesses:

ALFRED S." BIS OP, v HERBERT D. JAMEsoN.

Commissioner of Pat ents,

